| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
09/04/2013 |
|
Data da última atualização: |
19/09/2018 |
|
Autoria: |
DOMINGUES, E. P.; OLIVEIRA, H. C. de; VIANA, F. D. F. |
|
Título: |
Investimentos em infraestrutura no Nordeste: Projeções de impacto e perspectivas de desenvolvimento. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
Revista Econômica do Nordeste, Fortaleza, v. 43, n. 3, p. 405-425, jul./set. 2012. |
|
Idioma: |
Português |
|
Conteúdo: |
O artigo analisa um conjunto de simulações de programas de Infraestrutura (Saneamento, Habitação, Recursos Hídricos, Rodovias e Energia Elétrica) na região Nordeste do Brasil, anunciados pelo governo federal no âmbito do Programa de aceleração do Crescimento (PAC), a partir de um modelo de equilíbrio geral computável inter-regional. Os resultados indicam o impacto potencial destes projetos para a região, assim como alguns condicionantes que limitam a internalização desses ganhos. |
|
Palavras-Chave: |
Desigualdade regional; Economia regional; Infraestrutura; Investimentos; Nordeste. |
|
Thesagro: |
Políticas públicas. |
|
Thesaurus Nal: |
Public policy. |
|
Categoria do assunto: |
E Economia e Indústria Agrícola |
|
Marc: |
LEADER 01203naa a2200229 a 4500
001 1955346
005 2018-09-19
008 2012 bl uuuu u00u1 u #d
100 1 $aDOMINGUES, E. P.
245 $aInvestimentos em infraestrutura no Nordeste$bProjeções de impacto e perspectivas de desenvolvimento.
260 $c2012
520 $aO artigo analisa um conjunto de simulações de programas de Infraestrutura (Saneamento, Habitação, Recursos Hídricos, Rodovias e Energia Elétrica) na região Nordeste do Brasil, anunciados pelo governo federal no âmbito do Programa de aceleração do Crescimento (PAC), a partir de um modelo de equilíbrio geral computável inter-regional. Os resultados indicam o impacto potencial destes projetos para a região, assim como alguns condicionantes que limitam a internalização desses ganhos.
650 $aPublic policy
650 $aPolíticas públicas
653 $aDesigualdade regional
653 $aEconomia regional
653 $aInfraestrutura
653 $aInvestimentos
653 $aNordeste
700 1 $aOLIVEIRA, H. C. de
700 1 $aVIANA, F. D. F.
773 $tRevista Econômica do Nordeste, Fortaleza$gv. 43, n. 3, p. 405-425, jul./set. 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Clima Temperado. |
|
Data corrente: |
08/12/2020 |
|
Data da última atualização: |
08/12/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
PEREIRA, I. dos S.; BAMBERG, A. L.; SOUSA, R. O. de; MONTEIRO, A. B.; MARTINAZZO, R.; SILVEIRA, C. A. P.; SILVEIRA, A. de O. |
|
Afiliação: |
IVAN DOS SANTOS PEREIRA, UFPEL; ADILSON LUIS BAMBERG, CPACT; ROGÉRIO OLIVEIRA DE SOUSA, UFPEL; ALEX BECKER MONTEIRO, UFPEL; ROSANE MARTINAZZO, CPACT; CARLOS AUGUSTO POSSER SILVEIRA, CPACT; ANDRESSA DE OLIVEIRA SILVEIRA, UFSM. |
|
Título: |
Agricultural use and pH correction of anaerobic sewage sludge with acid pH. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Journal of Environmental Management, v. 275, Dec. 2020. |
|
DOI: |
doi.org/10.1016/j.jenvman.2020.111203 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Agricultural use is the main way of recycling sewage sludge. Besides providing nutrients and organic matter to crops and soils, it is an important alternative for recycling this residue. However, problems during the sewage treatment process may generate sludge batches with an acidic pH. Thus, it is essential to understand the consequences of using such sludge on soils and plants, and to explore ways to overcome this limitation. The objective of this study was to evaluate addition rates of anaerobic sewage sludge (ASS) with acidic compositions on the soil fertility and performance of lettuce plants. Additionally, a methodology for pH correction of ASS with acidic pH is proposed. An agronomic experiment was conducted in a greenhouse using seven addition rates of ASS (0.0, 0.25, 0.5, 1, 2, 4 and 8 g kg−1 in dry basis), treated with an additional step of disinfection (solarization), and applied in an Albaqualf soil cultivated with lettuce (Lactuca sativa). Soil and leaf chemical composition, as well as chlorophyll index and the dry matter of lettuce leaves were evaluated. Failures during the acidogenesis phase of the anaerobic digestion process were probably the cause of ASS acidification. Although this ASS increased soil fertility indicators and plant dry matter, it significantly reduced soil pH, thereby requiring a complementary assay to correct its pH up to 6.0, which was achieved through liming. Anaerobic sewage sludges with an acidic pH can be effectively used in agriculture after being dried and disinfected through solarization, followed by pH correction, avoiding negative impacts on soil chemical attributes and plant response. MenosAgricultural use is the main way of recycling sewage sludge. Besides providing nutrients and organic matter to crops and soils, it is an important alternative for recycling this residue. However, problems during the sewage treatment process may generate sludge batches with an acidic pH. Thus, it is essential to understand the consequences of using such sludge on soils and plants, and to explore ways to overcome this limitation. The objective of this study was to evaluate addition rates of anaerobic sewage sludge (ASS) with acidic compositions on the soil fertility and performance of lettuce plants. Additionally, a methodology for pH correction of ASS with acidic pH is proposed. An agronomic experiment was conducted in a greenhouse using seven addition rates of ASS (0.0, 0.25, 0.5, 1, 2, 4 and 8 g kg−1 in dry basis), treated with an additional step of disinfection (solarization), and applied in an Albaqualf soil cultivated with lettuce (Lactuca sativa). Soil and leaf chemical composition, as well as chlorophyll index and the dry matter of lettuce leaves were evaluated. Failures during the acidogenesis phase of the anaerobic digestion process were probably the cause of ASS acidification. Although this ASS increased soil fertility indicators and plant dry matter, it significantly reduced soil pH, thereby requiring a complementary assay to correct its pH up to 6.0, which was achieved through liming. Anaerobic sewage sludges with an acidic pH can be effectively used in agri... Mostrar Tudo |
|
Thesagro: |
Ácido; Gestão; Lodo Residual; Resíduo; Resíduo Solido. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218981/1/1-s2.0-S0301479720311282-main.pdf
|
|
Marc: |
LEADER 02434naa a2200265 a 4500
001 2127871
005 2020-12-08
008 2020 bl uuuu u00u1 u #d
024 7 $adoi.org/10.1016/j.jenvman.2020.111203$2DOI
100 1 $aPEREIRA, I. dos S.
245 $aAgricultural use and pH correction of anaerobic sewage sludge with acid pH.$h[electronic resource]
260 $c2020
520 $aAgricultural use is the main way of recycling sewage sludge. Besides providing nutrients and organic matter to crops and soils, it is an important alternative for recycling this residue. However, problems during the sewage treatment process may generate sludge batches with an acidic pH. Thus, it is essential to understand the consequences of using such sludge on soils and plants, and to explore ways to overcome this limitation. The objective of this study was to evaluate addition rates of anaerobic sewage sludge (ASS) with acidic compositions on the soil fertility and performance of lettuce plants. Additionally, a methodology for pH correction of ASS with acidic pH is proposed. An agronomic experiment was conducted in a greenhouse using seven addition rates of ASS (0.0, 0.25, 0.5, 1, 2, 4 and 8 g kg−1 in dry basis), treated with an additional step of disinfection (solarization), and applied in an Albaqualf soil cultivated with lettuce (Lactuca sativa). Soil and leaf chemical composition, as well as chlorophyll index and the dry matter of lettuce leaves were evaluated. Failures during the acidogenesis phase of the anaerobic digestion process were probably the cause of ASS acidification. Although this ASS increased soil fertility indicators and plant dry matter, it significantly reduced soil pH, thereby requiring a complementary assay to correct its pH up to 6.0, which was achieved through liming. Anaerobic sewage sludges with an acidic pH can be effectively used in agriculture after being dried and disinfected through solarization, followed by pH correction, avoiding negative impacts on soil chemical attributes and plant response.
650 $aÁcido
650 $aGestão
650 $aLodo Residual
650 $aResíduo
650 $aResíduo Solido
700 1 $aBAMBERG, A. L.
700 1 $aSOUSA, R. O. de
700 1 $aMONTEIRO, A. B.
700 1 $aMARTINAZZO, R.
700 1 $aSILVEIRA, C. A. P.
700 1 $aSILVEIRA, A. de O.
773 $tJournal of Environmental Management$gv. 275, Dec. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Clima Temperado (CPACT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
